.hero-preview {
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-copy {
  padding-block: 32px;
}

.hero-copy h1 {
  max-width: 560px;
}

.hero-description strong {
  color: var(--color-text);
}

.hero-quick-lines {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.hero-quick-row {
  min-width: 0;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.quick-row-label {
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
}

.quick-items {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.quick-item,
.quick-flag {
  min-height: 31px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-inline: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font-size: 10px;
  font-weight: 720;
  white-space: nowrap;
}

.quick-item svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  color: var(--color-accent-dark);
}

.quick-flag svg {
  width: 24px;
  height: 16px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: var(--radius-xs);
}

.flag-white {
  fill: var(--color-flag-white);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-red-deep {
  fill: var(--color-flag-red-deep);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.korea-red {
  fill: var(--color-flag-red);
}

.korea-blue {
  fill: var(--color-korea-blue);
}

.flag-black-stroke {
  stroke: var(--color-flag-black);
}

.section-heading {
  margin-bottom: 38px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(360px, 1.15fr);
  align-items: end;
  gap: 52px;
}

.split-heading h2 {
  margin-top: 18px;
  margin-bottom: 0;
}

.split-heading .lead {
  margin-bottom: 0;
}

.node-preview {
  position: relative;
  background: var(--color-panel);
}

.route-preview-table {
  box-shadow: var(--shadow-panel);
}

.route-guidance {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(460px, 1.2fr);
  gap: 24px;
  margin-top: 24px;
}

.route-guidance-copy,
.route-status-panel {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.route-guidance-copy {
  background: var(--color-panel-soft);
}

.route-guidance-copy p:last-of-type {
  margin-bottom: 22px;
}

.route-status-panel {
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.route-status-panel > p {
  margin-top: 14px;
}

.server-status {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.srv-row {
  min-width: 0;
  min-height: 58px;
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.srv-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 4px var(--color-success-soft);
  animation: server-breathe 2.8s ease-in-out infinite;
}

.srv-flag {
  width: 25px;
  height: 17px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: var(--radius-xs);
}

.srv-name {
  min-width: 0;
  overflow: hidden;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 790;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.srv-type {
  max-width: 100%;
  display: inline-flex;
  overflow: hidden;
  padding: 3px 6px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.srv-ms,
.srv-bw {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  white-space: nowrap;
}

.srv-ms {
  grid-column: 3;
}

.srv-bw {
  grid-column: 4;
  text-align: right;
}

.feature-browser-section {
  background: var(--color-bg);
}

.feature-browser-section > .wrap > h2 {
  margin-top: 18px;
}

.feature-browser {
  margin-top: 38px;
  overflow: visible;
}

.feature-tab-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(max-content, 1fr));
}

.feature-tab-list [role="tab"] {
  width: 100%;
}

.feature-panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr);
  align-items: start;
  gap: 48px;
}

.feature-panel-grid h3 {
  margin-top: 12px;
}

.feature-panel-grid p {
  margin-bottom: 0;
  font-size: 17px;
  line-height: 1.9;
}

.feature-index,
.decision-code {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 820;
  letter-spacing: .1em;
}

.feature-note {
  padding: 22px;
  border-left: 4px solid var(--color-warn);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-warn-soft);
}

.feature-note strong {
  color: var(--color-text);
}

.feature-note p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
}

.decision-bus {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.decision-bus::before {
  position: absolute;
  top: 19px;
  right: 8%;
  left: 8%;
  height: 2px;
  background: var(--gradient-brand);
  content: "";
}

.decision-bus article {
  position: relative;
  min-width: 0;
  padding: 42px 24px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.decision-bus article::before {
  position: absolute;
  top: 13px;
  left: 24px;
  width: 13px;
  height: 13px;
  border: 3px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 1px var(--color-success);
  content: "";
}

.decision-bus h3 {
  margin-top: 10px;
  font-size: 21px;
}

.decision-bus p {
  margin-bottom: 0;
}

.pricing-preview-section {
  background: var(--color-panel);
}

.pricing-preview-section .plan-card p {
  margin-bottom: 0;
}

.traffic-pack-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr);
  align-items: center;
  gap: 36px;
  margin-top: 30px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel-soft);
}

.traffic-pack-panel h3 {
  margin-top: 18px;
}

.traffic-pack-panel p {
  margin-bottom: 0;
}

.traffic-pack-list {
  display: grid;
  gap: 8px;
}

.traffic-pack-list span {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-inline: 17px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.traffic-pack-list strong {
  color: var(--color-text);
  font-size: 18px;
}

.section-link-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 26px;
}

.faq-preview-section {
  background: var(--color-bg);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: 64px;
}

.faq-intro {
  position: sticky;
  top: var(--toc-offset);
}

.faq-intro h2 {
  margin-top: 18px;
}

.faq-intro .article-link {
  display: inline-flex;
  margin-top: 10px;
}

.blog-preview-section {
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
}

@keyframes server-breathe {
  50% {
    opacity: .45;
    transform: scale(.82);
  }
}

@media (min-width: 769px) and (max-width: 1120px) {
  .hero-preview-inner {
    grid-template-columns: minmax(360px, .8fr) minmax(520px, 1.2fr);
  }

  .hero-quick-row {
    grid-template-columns: 1fr;
  }

  .split-heading,
  .route-guidance,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .route-guidance {
    gap: 18px;
  }

  .faq-intro {
    position: static;
  }

  .feature-tab-list {
    display: flex;
  }
}

@media (max-width: 900px) {
  .feature-panel-grid,
  .traffic-pack-panel {
    grid-template-columns: 1fr;
  }

  .decision-bus {
    grid-template-columns: 1fr;
  }

  .decision-bus::before {
    top: 8%;
    right: auto;
    bottom: 8%;
    left: 30px;
    width: 2px;
    height: auto;
  }

  .decision-bus article {
    padding-left: 54px;
  }

  .decision-bus article::before {
    top: 28px;
    left: 23px;
  }
}

@media (max-width: 768px) {
  .split-heading,
  .route-guidance,
  .faq-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-copy {
    padding-block: 0;
  }

  .hero-copy h1 {
    margin-top: 16px;
  }

  .hero-copy .button-row {
    margin-top: 20px;
  }

  .hero-description {
    font-size: 17px;
    line-height: 1.6;
  }

  .trust-line {
    padding-block: 10px;
  }

  .quick-platforms,
  .quick-flags {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .quick-item,
  .quick-flag {
    min-width: 0;
    min-height: 48px;
    justify-content: center;
    flex-direction: column;
    gap: 3px;
    padding: 5px 2px;
    overflow: hidden;
    font-size: 8px;
  }

  .quick-item svg {
    width: 17px;
    height: 17px;
  }

  .quick-flag svg {
    width: 25px;
    height: 17px;
  }

  .visual-stage {
    margin-top: 4px;
  }

  .device-card {
    padding: 14px;
  }

  .processor-frame {
    height: 300px;
  }

  .split-heading {
    gap: 20px;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .route-guidance-copy,
  .route-status-panel {
    padding: 20px;
  }

  .server-status {
    grid-template-columns: 1fr;
  }

  .feature-panel-grid {
    gap: 24px;
  }

  .feature-panel-grid p {
    font-size: 16px;
  }

  .traffic-pack-panel {
    gap: 22px;
  }

  .section-link-row {
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-preview-inner {
    padding-top: 38px;
  }

  .hero-quick-lines {
    gap: 8px;
  }

  .quick-row-label {
    display: none;
  }

  .processor-frame {
    height: 250px;
  }

  .flag-strip {
    height: 54px;
  }

  .flag-route {
    padding: 4px;
  }

  .platform-strip {
    height: 68px;
  }

  .feature-browser [role="tabpanel"] {
    padding: 20px;
  }

  .decision-bus article {
    padding-right: 18px;
  }

  .traffic-pack-list span {
    padding-inline: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .srv-dot {
    animation: none;
  }
}